What reading level is Tree House Mystery?

Tree House Mystery by Gertrude Chandler Warner is at a Level 4-5 reading level. Recommended for Middle Grades readers (Ages 9-12).

What age is Tree House Mystery appropriate for?

Tree House Mystery is recommended for Ages 9-12. HootRating: 9C (Clear).

What genre is Tree House Mystery?

Tree House Mystery is fiction — Juvenile Fiction.

Does Tree House Mystery have any content warnings?

Tree House Mystery has a HootRating of 9C (Clear). No specific content flags noted. On HootRated, every book is rated across four dimensions — emotional, physical, social, and thematic — to help parents make informed choices.

How many pages is Tree House Mystery?

Tree House Mystery by Gertrude Chandler Warner is 127 pages.

Tree House Mystery

Gertrude Chandler Warner

Tree House Mystery

Age Rating, Reading Level & Content Guide

by Gertrude Chandler Warner

Illustrated by David Cunningham

Reading Level 4-5 9C Ages 9-12 Balanced Read

The text is written at a 4th grade reading level, the subject matter is intended for middle graders (ages 9–12), and the content is gentle with no concerning themes.

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About This Book

There’s a hidden window in the neighbor’s house that no one has ever seen before — but why? Four curious siblings decide to uncover the secret, and what they find is just the beginning of an amazing adventure full of mystery and surprises.

Themes

Mystery Friendship Family Adventure

Quick Assessment

This middle-grade mystery follows four siblings who befriend new neighbors while uncovering a secret window in their house. The story encourages curiosity, problem-solving, and family bonding in a gentle and age-appropriate way, making it suitable for readers ages 9-12. Parents can expect light suspense without any intense or inappropriate content.

For Parents

Content Intensity

9C — Clear

Emotional

Clear

Physical

Clear

Social

Clear

Thematic

Clear

No conflict beyond everyday childhood experiences. Safe for sensitive readers.

Data confidence: standard

Was our "Gentle" content intensity rating accurate for this book?

Reading Insights

Hook Factor

3/10

A steady, thoughtful read that rewards patient readers.

Discussion Potential

1/10

A lighter read — great for independent enjoyment.

Book DNA

Multi-dimensional content fingerprint

Vocabulary Level

Emotional Weight

Theme Richness

World Scope

Data Confidence

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Gertrude Chandler Warner